In this Friday, Feb. 16, 2018 photo, the Schwandt family poses for a portrait in front of their home in Grand Rapids, Mich. The only member not pictured is Brandon, 18. The Schwandt family has 13 sons and have welcomed a 14th into the family. The couple's latest addition was born Wednesday evening, April 18, five days before the baby's expected due date.(Photo: Casey Sykes /The Grand Rapids Press via AP)

WOOD-TV reports that the boy weighs 8 pounds, 4 ounces and is 21 inches long. His name wasn’t immediately announced.

In this Friday, Feb. 16, 2018 photo, from left to right, brothers Francisco, 2, Tucker, 4, Luke, 6, Charlie, 8, Gabe, 11, Wesley, 9, Calvin, 13, Drew, 20, Tommy, 16, Zach, 22, Vinny, 15, and Ty Schwandt, 25, pose for a portrait at the Schwandt household in Grand Rapids, Mich. The only brother not pictured is Brandon, 18. The Schwandt family has 13 sons and have welcomed a 14th into the family. The couple's latest addition was born Wednesday evening, April 18, five days before the baby's expected due date.(Photo: Casey Sykes /The Grand Rapids Press via AP)

As with their last few children, the couple from Rockford didn’t want to know the baby’s sex ahead of time.

Jay Schwandt said earlier this year that he would have loved to have a girl, but didn’t think would be in the cards. He was right.

In this Friday, Feb. 16, 2018 photo, Francisco, 2, and Tucker, 4, play as their dad, Jay, is interviewed in their home in Grand Rapids, Mich. The Schwandt family has 13 sons and have welcomed a 14th into the family. The couple's latest addition was born Wednesday evening, April 18, five days before the baby's expected due date.(Photo: Casey Sykes /The Grand Rapids Press via AP)

Kateri Schwandt has said she’s used to large families, as one of 14 children herself.

On their day off, the cast and crew of "Hamilton," one of Broadway's hottest shows, spent the afternoon at Six Flags Great Adventure and sampled many of the park's thrill rides. Daveed Diggs, who plays Thomas Jefferson, reacts after riding Nitro at the park on Oct. 12, 2015.
Bob Bielk/Staff photographer

On their day off, the cast and crew of "Hamilton," one of Broadway's hottest shows, spent the afternoon at Great Adventure and sampled many of the park's thrill rides. The group rides Nitro at the park on Oct. 12, 2015.
Bob Bielk/Staff photographer

On Oct. 12, 2015, the cast and crew of "Hamilton," one of Broadway's hottest shows, spent the afternoon at Six Flags Great Adventure and sampled many of the park's thrill rides.
Bob Bielk/Staff photographer

On their day off, the cast and crew of "Hamilton", one of Broadway's hottest shows, spent the afternoon at Six Flags Great Adventure and sampled many of the park's thrill rides. Stephanie Klemons (center), Colts Neck, associate choreographer, rides Nitro at the park on Oct. 12, 2015.
Bob Bielk/Staff photographer

Rapper and actor Ice-T appears with actress wife CoCo and Treach from Naughty by Nature at Six Flags Great Adventure in Jackson in 2013. Ghouls from the park's Fright Fest pose with them.
Courtesy of Six Flags Great Adventure

Actor Richard Gere checked out Six Flags Great Adventure's Safari Off Road Adventure on June 17, 2012, as he and his wife, model and actress Carey Lowell, celebrated their son Homer's 13th birthday with a VIP Tour at the Jackson theme park. The family and a group of Homer's friends challenged the park's award-winning roller coasters including the world's tallest coaster, Kingda Ka, Nitro and El Toro.
Courtesy of Six Flags Great Adventure